Weather sealing on a storage door supports block drafts, rain, grime, and pests from entering the distance lower than.
https://goldcoast-qld4209-su802.lucialpiazzale.com/garage-door-tracks-and-maintenance-for-better-door-performance-in-storm-prep
Weather sealing on a storage door allows block drafts, rain, airborne dirt and dust, and pests from coming into the space less than.